BR0003612A - Processo de fabricação de cintas finas em aço de tipo "trip" e cintas finas assim obtidas - Google Patents

Processo de fabricação de cintas finas em aço de tipo "trip" e cintas finas assim obtidas

Info

Publication number
BR0003612A
BR0003612A BR0003612-9A BR0003612A BR0003612A BR 0003612 A BR0003612 A BR 0003612A BR 0003612 A BR0003612 A BR 0003612A BR 0003612 A BR0003612 A BR 0003612A
Authority
BR
Brazil
Prior art keywords
band
straps
degrees
trip
thin
Prior art date
Application number
BR0003612-9A
Other languages
English (en)
Inventor
Thierry Iung
Odile Faral
Michel Faral
Michel Barbit
Christophe Issartel
Original Assignee
Usinor
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Usinor filed Critical Usinor
Publication of BR0003612A publication Critical patent/BR0003612A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
    • C21D8/0215—Rapid solidification; Thin strip casting
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • C21D1/20—Isothermal quenching, e.g. bainitic hardening
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/001—Austenite
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/002—Bainite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)
  • Heat Treatment Of Steel (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)

Abstract

Patente de Invenção: <B>"PROCESSO DE FABRICAçãO DE CINTAS FINAS EM AçO DE TIPO "TRIP" E CINTAS FINAS ASSIM OBTIDAS"<D>. A invenção tem por objeto um processo de fabricação de cintas finas em aço de tipo "TRIP", segundo o qual: - se derrama diretamente a partir de aço líquido uma cinta de espessura compreendida entre 1,5 e 10 mm, preferencialmente 1 a 5 mm, esse aço tendo a composição (em percentagens ponderais) C% compreendido entre 0,05 e 0,25, (Mn + Cu + Ni) % compreendido entre 0,5 e 3, (Si + Al) % compreendido entre 0,1 e 4, (P + Sn + As + Sb) % inferior ou igual a 0,1, (Ti + Nb + V + Zr + terras raras) % inferior a 0,3, Cr % inferior a 1, Mo % inferior a 1, V % inferior a 1, o resto sendo o ferro e impurezas resultantes da elaboração; - se faz uma laminação a quente em linha dessa cinta a uma temperatura superior à temperatura Ar~ 3~ desse aço com uma taxa de redução compreendida entre 25 e 70% em um ou vários passes; - se faz um primeiro resfriamento forçado dessa cinta a uma velocidade compreendida entre 5 e 100°C/s;- se deixa permanecer a cinta a temperaturas compreendidas entre 550 e 400°C, durante o tempo necessário para que aí se produza uma transformação bainítica com uma proporção de austenita residual superior a 5%, evitando a formação de perlita, depois se interrompe essa transformação por um segundo resfriamento forçado dessa cinta que a leva a uma temperatura inferior a 400°C; - se faz uma bobinagem dessa cinta a um temperatura inferior a 350°C. A invenção tem igualmente por objeto uma cinta fina em aço de tipo "TRIP" capaz de ser obtida pelo processo precedente.
BR0003612-9A 1999-07-30 2000-07-31 Processo de fabricação de cintas finas em aço de tipo "trip" e cintas finas assim obtidas BR0003612A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9910060A FR2796966B1 (fr) 1999-07-30 1999-07-30 Procede de fabrication de bandes minces en acier de type "trip" et bandes minces ainsi obtenues

Publications (1)

Publication Number Publication Date
BR0003612A true BR0003612A (pt) 2001-03-13

Family

ID=9548832

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0003612-9A BR0003612A (pt) 1999-07-30 2000-07-31 Processo de fabricação de cintas finas em aço de tipo "trip" e cintas finas assim obtidas

Country Status (9)

Country Link
US (1) US6328826B1 (pt)
EP (1) EP1072689B1 (pt)
JP (2) JP4684397B2 (pt)
KR (1) KR100656974B1 (pt)
AT (1) ATE263846T1 (pt)
BR (1) BR0003612A (pt)
CA (1) CA2314830C (pt)
DE (1) DE60009611T2 (pt)
FR (1) FR2796966B1 (pt)

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EP1326725B1 (en) * 2000-09-29 2009-08-05 Nucor Corporation Production of thin steel strip
AUPR047900A0 (en) * 2000-09-29 2000-10-26 Bhp Steel (Jla) Pty Limited A method of producing steel
US7117925B2 (en) * 2000-09-29 2006-10-10 Nucor Corporation Production of thin steel strip
KR100613252B1 (ko) * 2000-12-26 2006-08-18 주식회사 포스코 변태유기소성강의 제조방법
WO2002061161A1 (fr) * 2001-01-31 2002-08-08 Kabushiki Kaisha Kobe Seiko Sho Feuillard en acier a haute resistance ayant une excellente formabilite, et son procede de production
US7090731B2 (en) 2001-01-31 2006-08-15 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) High strength steel sheet having excellent formability and method for production thereof
KR100770950B1 (ko) * 2001-12-18 2007-10-26 주식회사 포스코 폭방향 잔류오스테나이트 안정화를 위한 권취 후 냉각방법
KR100782758B1 (ko) * 2001-12-24 2007-12-05 주식회사 포스코 폭방향 잔류오스테나이트 안정화를 위한 권취온도 설정 방법
FR2834722B1 (fr) 2002-01-14 2004-12-24 Usinor Procede de fabrication d'un produit siderurgique en acier au carbone riche en cuivre, et produit siderurgique ainsi obtenu
FR2836930B1 (fr) * 2002-03-11 2005-02-25 Usinor Acier lamine a chaud a tres haute resistance et de faible densite
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FR2847271B1 (fr) * 2002-11-19 2004-12-24 Usinor Procede pour fabriquer une tole en acier resistant a l'abrasion et tole obtenue
FR2847270B1 (fr) * 2002-11-19 2004-12-24 Usinor Procede pour fabriquer une tole en acier resistant a l'abrasion et tole obtenue
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FR2849864B1 (fr) * 2003-01-15 2005-02-18 Usinor Acier lamine a chaud a tres haute resistance et procede de fabrication de bandes
US7484551B2 (en) * 2003-10-10 2009-02-03 Nucor Corporation Casting steel strip
EP1680245B1 (en) * 2003-10-10 2018-12-05 Nucor Corporation Casting steel strip
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ATE432374T1 (de) * 2006-10-30 2009-06-15 Thyssenkrupp Steel Ag Verfahren zum herstellen von stahl-flachprodukten aus einem mit aluminium legierten mehrphasenstahl
DE502006003835D1 (de) * 2006-10-30 2009-07-09 Thyssenkrupp Steel Ag Verfahren zum Herstellen von Stahl-Flachprodukten aus einem mit Bor mikrolegierten Mehrphasenstahl
ES2325961T3 (es) * 2006-10-30 2009-09-25 Thyssenkrupp Steel Ag Procedimiento para fabricar productos planos de acero a partir de un acero que forma una estructura martensitica.
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CN103305759B (zh) * 2012-03-14 2014-10-29 宝山钢铁股份有限公司 一种薄带连铸700MPa级高强耐候钢制造方法
CN103305770B (zh) * 2012-03-14 2015-12-09 宝山钢铁股份有限公司 一种薄带连铸550MPa级高强耐大气腐蚀钢带的制造方法
CN103302255B (zh) * 2012-03-14 2015-10-28 宝山钢铁股份有限公司 一种薄带连铸700MPa级高强耐大气腐蚀钢制造方法
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CN103215423B (zh) * 2013-04-18 2015-07-15 首钢总公司 一种热轧相变诱导塑性钢卷的生产方法
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CN106521337B (zh) * 2016-11-17 2018-09-04 成都先进金属材料产业技术研究院有限公司 板坯流程生产相变诱导塑性钢的方法
CN106636931B (zh) * 2016-12-30 2018-05-18 北京科技大学 一种含δ-铁素体的TRIP钢的制备方法
CN106636925B (zh) * 2016-12-30 2018-05-18 北京科技大学 一种高强塑积冷轧trip钢及其制备方法
RU2679786C1 (ru) * 2017-11-13 2019-02-12 Сергей Александрович Ненашев СПОСОБ ТЕРМИЧЕСКОЙ ОБРАБОТКИ ХОЛОДНОКАТАНОЙ СТАЛЬНОЙ ЛЕНТЫ ТОЛЩИНОЙ 0,30-1,5 ММ ИЗ КОНСТРУКЦИОННОЙ СТАЛИ С ПРЕДЕЛОМ ПРОЧНОСТИ ПРИ РАСТЯЖЕНИИ 800 -1200МПа
RU2687620C2 (ru) * 2017-11-13 2019-05-15 Сергей Александрович Ненашев Способ обработки стальной упаковочной ленты
CN109865806A (zh) * 2018-06-08 2019-06-11 江苏沙钢集团有限公司 一种薄带连铸345MPa级耐候钢及其生产方法
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Also Published As

Publication number Publication date
EP1072689A1 (fr) 2001-01-31
JP4684397B2 (ja) 2011-05-18
KR100656974B1 (ko) 2006-12-15
JP2011047054A (ja) 2011-03-10
DE60009611T2 (de) 2005-03-31
KR20010021143A (ko) 2001-03-15
DE60009611D1 (de) 2004-05-13
CA2314830A1 (fr) 2001-01-30
EP1072689B1 (fr) 2004-04-07
ATE263846T1 (de) 2004-04-15
US6328826B1 (en) 2001-12-11
JP2001073040A (ja) 2001-03-21
CA2314830C (fr) 2009-03-17
FR2796966A1 (fr) 2001-02-02
FR2796966B1 (fr) 2001-09-21

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B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B15K Others concerning applications: alteration of classification

Free format text: ALT. DE CLASSIFICACAO DA INT. CL.7: B22D 11/06, B21B 1/22, C22C 38/02, C22C 38/04, C22C 38/06.

Ipc: C21D 8/02

B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 31/07/2000, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

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B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2257 DE 08-04-2014 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.